GRC-2006F Dual Operator Radio Remote Control
Brooke Clarke 2014
Because of my interest in the GRC-206 (PRC-104/GRC-206, GRC-206/MT-6250) this unit caught my eye. It has provision for two ratio operators to share a number of radios just like the GRC-206. See the C-11166/GRC-206 Universal Radio System Control URSC where the remote control is done using fiber optic cable.
My guess is (just after receiving the unit) that the remote control is done using field telephone wire, like WD-1. The DC power may come from the same line or maybe the circular mil connector on the bottom.
There are no connectors, controls or indicators on the back, left or right sides. There are 2 "J" anchor points for the common military hasp fasteners on the left and right and they might be used to anchor this control unit to a vehicle. The "J" is orientated the wrong way for use to hold a cover on the front. The top has a carry handle. the bottom left has a pair of push to connect terminals for field wire and the right bottom has a circular mil connector.
Unlike the GRC-206 where each operator can change the channel or frequency this unit has no provision for channel or frequency control.
Article (unknown source)
GRC-2006 Integrated Tactical Radio Remoting System
The GRC-2006 enables two operators to independently use up to seven standard tactical radio sets at distanced of up to 1,000 m without repeaters or boosters. The system consists of the RIU (Radio Interface Unit), mounted in the vicinity of the radio sets, and the Operator Control Unit (OCU) which communicates with the RIU over standard two-wire field cable. Features of the system include:
The latest version of the system, the GRC-2006T, supports integral telephony with two-wire PBX or CO interfacing, or four-wire DTMF dial in/dial out or PTP interfacing. The GRC 2006V model supports four remote operators using two OCUs. An upgraded RIU maintains the same form/fit of earlier models and provides additional capabilities and optional enhancements such as embedded GPS reception for accurate timing generation and/or navigation data.
- six- or four-wire interfaces for radio and PTT control;
- high cross-talk isolation;
- RS-232C or -422 interfacing to data communication devices such as TACTER, and COMSEC or ECCM equipment;
- retransmission capability between any two radio networks;
- intercom between the two remote operators and the RIU, with conference calling;
- use with all standard headsets and microphones;
- and optional remote frequency control.
The GRC-2006 can be installed in M-151, M-113, AOC, HMMWV, CUCV and other combat vehicles, Command Posts, C3 mobile shelters, ATC towers, and artillery fire co-ordination centers. Typical radio interfaces are AN/VRC-12, AN/VRC-88 and AN/VRC-83, AN/GRC-171 (FAS) and -211, AN/ARC-164 (Wiki) and AN/URC-92. Power is 18 to 32 VDC, and the system meets MIL-STD-810C and, for RFI, MIL-STD-461. MTBF is 20,000 hours and MTTR is less than 15 minutes at the LRU (Line Replaceable Unit) level. The RIU measures 300x250x170 mm and weighs 6 kg with mounting tray. The OCU measures 300x200x95mm and weighs 5 kg.
Status
Fielded with the Israeli Defense Forces as well as the U.S. Marine Corps in undisclosed quantities. In production since 1992. Field tested by various other potential customers and additional procurements being negotiated in early 1996.
Manufacturer
C. Mer Ind Ltd, Holon.
Controls, Connectors & Indicators
These are arranged with Operator 1 controls, connectors and indicators on the left, Operator 2 controls, connectors and indicators on the right and common controls and indicators in the center.
There are stickers next to the central activity LEDs.
93 or a3 p.n (1)
PRC-113 (2)
PRC-113 (3)
R-422 (4)
INT-F might be Intercom-Front
INT-R might be Intercom-Rear
M.Volt might be Master Volume
VRC ???
ECCM is Electronic Counter Counter Measures (anti jamming)
SEC is voice security (encryption)
Hdst is Handset (most likely an H-250 or H-350 handset)
Operator 1
Common
Operator 2
Tx Select (switch)
1, 2, 3, 4, 5, 6, INT-R, INT-F, Test, All
Pwr/Err (sw & LED)
Tx Select (switch)
1, 2, 3, 4, 5, 6, INT-R, INT-F, Test, All
M.Vol (pot)
Spkr Vol (pot)
M.Vol (pot) Rx Select (switch)
1, 2, 3, 4, 5, 6, VCR, INT, Data, Off
Rcv/Xmt Channel Activity Indicators (LEDs)
1, 2, 3, 4, 5, 6, VCR, INT
Rx Select (switch)
1, 2, 3, 4, 5, 6, VCR, INT, Data, OffData (U-229 type jack)
Relay (switch)
Off, 1-2, 1-3, 1-4, 2-3, 2-4, 3-4, (no label), ECCM, SEC (LED)
Data (U-229 type jack) Hdst (U-229 type jack)
Hdst (U-229 type jack) Vol- & Vol+ (push buttons & LEDs)
Vol- & Vol+ (push buttons & LEDs)
Photos
Fig 1 Front-Top-Left
Fig 2 Front-Bottom-Right
Fig 3 Front
Fig 4 Inside
Fig 5 System: Switch Box, Remote, WD-36 field wire
GRC-206
GRC-206 (PRC-104/GRC-206
GRC-206/MT-6250)
C-11166/GRC-206 Universal Radio System Control URSC
Rugged Handheld Computer (RHC) 31A, Tactical Terminal (Tacter) 31A
COMSEC (Wiki)
ECCM (Wiki)
Vehicles
M-151
HMMWV
CUCV M1009
Military Radios
AN/VRC-12, RT-246 Military VHF Low Band Vehicle Radio, VRC-12 Family
AN/VRC-88 RT-1439, RT-1523, SINCGARS
AN/VRC-83 RT-1319, AM-7176
Obtained from eBay seller Art-In-Part.
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web page created 6 Dec 2014
